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28463834 = 272388397
BaseRepresentation
bin110110010010…
…1001011011010
31222120010001002
41230211023122
524241320314
62454025002
7463636640
oct154451332
958503032
1028463834
1115081333
129648162
135b87a09
143acd190
152773ade
hex1b252da

28463834 has 16 divisors (see below), whose sum is σ = 50917248. Its totient is φ = 11668272.

The previous prime is 28463821. The next prime is 28463839. The reversal of 28463834 is 43836482.

It is not an unprimeable number, because it can be changed into a prime (28463839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43877 + ... + 44520.

It is an arithmetic number, because the mean of its divisors is an integer number (3182328).

Almost surely, 228463834 is an apocalyptic number.

28463834 is a deficient number, since it is larger than the sum of its proper divisors (22453414).

28463834 is a wasteful number, since it uses less digits than its factorization.

28463834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88429.

The product of its digits is 110592, while the sum is 38.

The square root of 28463834 is about 5335.1507944949. The cubic root of 28463834 is about 305.3264765320.

The spelling of 28463834 in words is "twenty-eight million, four hundred sixty-three thousand, eight hundred thirty-four".

Divisors: 1 2 7 14 23 46 161 322 88397 176794 618779 1237558 2033131 4066262 14231917 28463834